/*
 * This code was written by Bear Giles <bgiles@coyotesong.com> and he
 * licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Any contributions made by others are licensed to this project under
 * one or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 * Copyright (c) 2013 Bear Giles <bgiles@coyotesong.com>
 */
package com.invariantproperties.sandbox.student.maintenance.web.tables;

import org.apache.tapestry5.annotations.InjectComponent;
import org.apache.tapestry5.annotations.Property;
import org.apache.tapestry5.corelib.components.Grid;
import org.apache.tapestry5.grid.GridDataSource;
import org.apache.tapestry5.ioc.annotations.Inject;

import com.invariantproperties.sandbox.student.business.ClassroomFinderService;
import com.invariantproperties.sandbox.student.business.CourseFinderService;

public class GridDataSources {
    // Screen fields

    @Property
    private GridDataSource classrooms;

    @Property
    private GridDataSource courses;

    // Generally useful bits and pieces

    @Inject
    private ClassroomFinderService classroomFinderService;

    @Inject
    private CourseFinderService courseFinderService;

    @InjectComponent
    private Grid grid;

    // The code

    void setupRender() {
        classrooms = new ClassroomPagedDataSource(classroomFinderService);
        courses = new CoursePagedDataSource(courseFinderService);

        if (grid.getSortModel().getSortConstraints().isEmpty()) {
            grid.getSortModel().updateSort("name");
        }
    }
}
